<template>
  <div class="wrapper">
      <!-- 轮播组件 -->
    <swiper :options="swiperOption" v-if="show">
      <!-- slides -->
      <swiper-slide v-for="item of list" :key="item.id">
        <img class="swiper-img" :src="item.imgUrl" alt="" @click="imgClick">
      </swiper-slide>
      <!-- Optional controls -->
      <div class="swiper-pagination"  slot="pagination"></div>
    </swiper>
  </div>
</template>

<script>
  export default {
    name: "HomeSwiper",
    props: {
      list: Array
    },
    methods: {
      imgClick: function() {
        alert("imgClick")
      }
    },
    data() {
      return {
        swiperOption: {
          pagination: ".swiper-pagination",
          loop: true,  //循环轮播
          autoPlay: true
        }
      }
    },
    computed: {
      show () {
        return this.list.length
      }
    }
  }
</script>

<style lang="stylus" scoped>
  // 样式穿透 不受scoped限制
  .wrapper >>> .swiper-pagination-bullet-active
    background: #fff !important
  .wrapper
    overflow: hidden
    width: 100%
    height: 0
    padding-bottom: 31.25%
    background: #eee
    .swiper-img
      width: 100%
</style>